How to print the selected array in another php page?

Lim · July 29, 2022

Hi, I'm currently making a form where student sign up for their clubs(clubs-join.php).

Then, after they sign up, they will be sent to another page called clubs-result.php.

They will see their output like this:

Thanks for joining

Mr. a

You have joined the following clubs: (this is based on what clubs Mr a chose)

Gentlemen Club(GT)
Pet Society Club(PS)

However, I could only get this output:

Thanks for joining

Mr. a

You have joined the following clubs:

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\Practical\Practical3\clubs-result.php on line 19

This is clubs-join.php

<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <h1>Join TARUC's interest clubs</h1>
        <form method="post" action="clubs-result.php">
            Gender: 
            <input type="radio" name="gender" value="male"> Male
            <?php if (isset($gender) && $gender == "male") {
                echo "checked";
            }
            ?>
            <input type="radio" name="gender" value="female"> Female<br><br>
            <?php if (isset($gender) && $gender == "female") {
                echo "checked";
            }
            ?>
            Name: 
            <input type="text" maxlength="50" id="name" name="name"><br><br>
            Mobile Phone:
            <input type="text" maxlength="20" id="phone" name="phone"><br><br>
            Interest Clubs: (Select 1 to 3 clubs)<br>

            <!--            $clubs = array("Ladies Club", "Gentlemen Club", "DOTA and Gaming Club", "Manga and Comic Club", "Pet Society Club", "Farmville Club");-->

            <?php
            $club = array(
                'LD' => 'Ladies Club',
                'GT' => 'Gentlemen Club',
                'DG' => 'DOTA and Gaming Club',
                'MC' => 'Manga and Comic Club',
                'PS' => 'Pet Society Club',
                'FV' => 'Farmville Club'
            );
                        
            foreach($club as $code => $clubName){
            
                echo '<input type = "checkbox" class = "radio" value = "$club" name = "club" />';
                echo $clubName;
                echo'<br>';
            }
            ?>
<!--            <input type = "checkbox" class = "radio" value = "Ladies Club(LD)" name = "club" />Ladies Club<br>
            <input type = "checkbox" class = "radio" value = "Gentlemen Club(GT)" name = "club" />Gentlemen Club<br>
            <input type = "checkbox" class = "radio" value = "DOTA and Gaming Club(GC)" name = "club" />DOTA and Gaming Club<br>
            <input type = "checkbox" class = "radio" value = "Manga and Comic Club(MCC)" name = "club" />Manga and Comic Club<br>
            <input type = "checkbox" class = "radio" value = "Pet Society Club(PS)" name = "club" />Pet Society Club<br>
            <input type = "checkbox" class = "radio" value = "Farmville Club(FV)" name = "club" />Farmville Club<br>-->
            
            <input type="submit" value="Submit">
            <input type="reset" value="Reset">

        </form>
        <?php
// define variables and set to empty values
        $name = $phone = $gender = $club = "";

        if ($_SERVER["REQUEST_METHOD"] == "POST") {
            $name = test_input($_POST["name"]);
            $phone = test_input($_POST["phone"]);
            $gender = test_input($_POST["gender"]);
            $club = test_input($_POST["club"]);
        }

        ?>
    </body>
</html>

This is clubs-result.php

<?php

$gender = $_POST["gender"];
$name = $_POST["name"];
$club = $_POST["club"];

echo "<h1>Thanks for joining</h1>";
if ($gender == "female") {
    echo "<h2><b>Ms. $name</b></h2>";
} else {
    echo "<h2><b>Mr. $name</b></h2>";
}

echo "You have joined the following clubs:<br>";

if (isset($club)) {
    echo "<ul>";
    
    foreach ($club as $code => $clubName) {

        echo "<li>";
        echo ($clubName($code));
        echo "</li>";
    }
    echo "</ul>";
}

I tried changing the coding at $club part, but I still cant get the output that I want, can anyone point out my mistake?

Edited July 29, 2022 by Lim

mac_gyver · July 29, 2022

to produce an array of the club checkboxes, the field name must be an array - name = "club[]"

gw1500se · July 29, 2022

Did you echo $_POST("club") to make sure it contains what you expect? I don't see where you are passing it in the form.

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How to print the selected array in another php page?

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